This article discusses the development of a user friendly interface for a portable rehabilitation device. In recent years, the demand for such devices has grown significantly. Since professionals can generally dedicate only a limited amount of time each week to each patient, portable solutions help bridge this gap. The main drawback lies in the lack of supervision during therapy sessions performed independently. The user interface presented in this article is proposed as a solution to enable patient monitoring and to track improvements or regressions in rehabilitation. Through the cloud, the web app for physicians and the mobile app for patients remain connected, ensuring a continuous exchange of data collected by the rehabilitation device. The application processes this information and sends it to the cloud, creating a symbiotic network that allows ongoing supervision even in the absence of a professional during therapy.